JP2018129971A - Wiring harness routing structure - Google Patents

Wiring harness routing structure Download PDF

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Publication number
JP2018129971A
JP2018129971A JP2017022821A JP2017022821A JP2018129971A JP 2018129971 A JP2018129971 A JP 2018129971A JP 2017022821 A JP2017022821 A JP 2017022821A JP 2017022821 A JP2017022821 A JP 2017022821A JP 2018129971 A JP2018129971 A JP 2018129971A
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Prior art keywords
wire harness
pipe
conductor
pipe portion
straight pipe
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JP2017022821A
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JP6757498B2 (en
Inventor
秀寿 杉野
Hidetoshi Sugino
秀寿 杉野
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2017022821A priority Critical patent/JP6757498B2/en
Priority to CN201810113714.1A priority patent/CN108418155B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462Tubings, i.e. having a closed section
    • H02G3/0481Tubings, i.e. having a closed section with a circular cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207Wire harnesses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207Wire harnesses
    • B60R16/0215Protecting, fastening and routing means therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406Details thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462Tubings, i.e. having a closed section
    • H02G3/0468Corrugated
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30Installations of cables or lines on walls, floors or ceilings
    • H02G3/32Installations of cables or lines on walls, floors or ceilings using mounting clamps

Abstract

PROBLEM TO BE SOLVED: To suppress deformation of a pipe member made of resin with a passage of time without inviting an increase in size of a wiring structure.SOLUTION: A wire harness 10 is inserted into a synthetic resin pipe member 30 supported by a clamp 50. The pipe member 30 is provided with a straight pipe portion 31 extending in an axial direction and a curved pipe portion which is connected to both axial end portions of the straight pipe portion 31 and is bendable and deformable. A portion of the wire harness 10 inserted through the straight pipe portion 31 includes a shape retaining conductor capable of retaining a wiring shape, for example, a single core wire 12. A portion of the wire harness 10 inserted through a curved pipe portion 32 includes a flexible conductor electrically connected to the shape retaining conductor, for example, a twisted wire 13.SELECTED DRAWING: Figure 4

Description

本発明は、ワイヤハーネスの配索構造に関する。   The present invention relates to a wiring harness wiring structure.

特許文献1に開示のワイヤハーネスの配索構造は、車両に配索されるワイヤハーネスを保護する外装保護材としてのパイプを備えている。パイプは、樹脂製であって、ワイヤハーネスを包囲する直管部と蛇腹管部とを連続的に備えた一体成型品として構成される。ワイヤハーネスは高圧ケーブルであり、パイプは高圧系であることを示すオレンジ色に配色されている。特許文献1の場合、高圧ケーブルがパイプに挿通された後、蛇腹管部が車両レイアウトに応じて曲げられて組み付けられる。   The wiring structure of the wire harness disclosed in Patent Document 1 includes a pipe as an exterior protective material that protects the wire harness that is wired in the vehicle. The pipe is made of resin, and is configured as an integrally molded product continuously including a straight pipe portion and a bellows pipe portion surrounding the wire harness. The wire harness is a high-voltage cable, and the pipe is colored orange indicating that it is a high-pressure system. In the case of Patent Document 1, after the high-voltage cable is inserted into the pipe, the bellows tube portion is bent and assembled according to the vehicle layout.

また、特許文献2に開示のワイヤハーネスの配索構造は、同じく車両に配索される高圧同軸複合導電路を保護する外装部材を備えている。外装部材は、樹脂製の管体であって、曲げ管部と非曲げ管部とを有している。非曲げ管部は、断面円形の非曲げ管部本体と、非曲げ管部本体の外面から突出するリブ状の剛性付加部とを有する。剛性付加部は、剛性の付加部分として非曲げ管部本体に設けられている。   Moreover, the wiring structure of the wire harness disclosed in Patent Document 2 includes an exterior member that protects the high-voltage coaxial composite conductive path that is also wired to the vehicle. The exterior member is a resin tube and has a bent tube portion and a non-bent tube portion. The non-bending tube portion has a non-bending tube portion main body having a circular cross section and a rib-like rigidity adding portion protruding from the outer surface of the non-bending tube portion main body. The rigidity addition part is provided in the non-bending pipe part main body as a rigidity addition part.

特開2009−143326号公報JP 2009-143326 A 特開2014−42408号公報JP 2014-42408 A

特許文献1の場合、パイプがクランプで支持されて車体に取り付けられた状態において、直管部に高圧ケーブルの重さや振れによる大きな荷重がかかり、直管部の軸方向中間部が垂れ下がるように経年変化するおそれがある。その点、特許文献2によれば、剛性付加部によって非曲げ管部本体が曲げ変形されるのを抑えることができる。しかし、剛性付加部が追加される分、配索スペースがとられ、配索構造が大型になってしまうという問題がある。また、剛性付加部は樹脂製であるため、経時的な材料劣化によって剛性が低下することも懸念される。   In the case of Patent Document 1, when the pipe is supported by the clamp and attached to the vehicle body, a large load is applied to the straight pipe portion due to the weight or vibration of the high-pressure cable, and the axial intermediate portion of the straight pipe portion hangs down. May change. In that respect, according to Patent Literature 2, it is possible to suppress the bending of the non-bending tube body by the rigidity adding portion. However, there is a problem that a wiring space is taken as much as the rigidity adding portion is added, and the wiring structure becomes large. Further, since the rigidity adding portion is made of a resin, there is a concern that the rigidity is lowered due to material deterioration with time.

本発明は上記のような事情に基づいて完成されたものであって、配索構造の大型化を招くことなく、樹脂製の管材が経時的に変形されるのを防止することを目的とする。   This invention was completed based on the above situations, Comprising: It aims at preventing that a resin-made pipe material deform | transforms with time, without causing the enlargement of a wiring structure. .

本発明は、クランプで支持される樹脂製の管材に挿通されるワイヤハーネスの配索構造であって、前記管材は、軸方向に延びる直管部を備え、前記ワイヤハーネスにおける前記直管部に挿通される部分には、配索形状を保持することが可能な形状保持導体が含まれているところに特徴を有する。   The present invention is a wiring structure of a wire harness inserted through a resin pipe supported by a clamp, and the pipe includes a straight pipe portion extending in an axial direction, and the straight pipe portion in the wire harness The inserted portion is characterized in that it includes a shape holding conductor capable of holding the wiring shape.

樹脂製の管材がクランプで支持された状態で、管材の軸方向中間部がワイヤハーネスの重さなどに起因して垂れ下がるように経年変化するおそれがあるものの、本発明の場合、ワイヤハーネスにおける直管部に挿通される部分に形状保持導体が含まれているため、直管部に大きな荷重がかかるのを防止することができる。その結果、樹脂製の管材が経時的に変形されるのを防止することができる。また、直管部の外周に付加的な構造を設ける必要がないから、配索構造が大型になるのを回避することができる。   In the case of the present invention, in the case of the present invention, there is a possibility that the axial middle portion of the pipe material may hang down due to the weight of the wire harness, etc., while the resin pipe material is supported by the clamp. Since the shape maintaining conductor is included in the portion inserted through the tube portion, it is possible to prevent a large load from being applied to the straight tube portion. As a result, it is possible to prevent the resin pipe from being deformed over time. Moreover, since it is not necessary to provide an additional structure on the outer periphery of the straight pipe portion, it is possible to avoid an increase in the size of the routing structure.

本発明の実施例1に係るワイヤハーネスの配索構造の斜視図である。It is a perspective view of the wiring structure of the wire harness which concerns on Example 1 of this invention. 同じく、正面図である。Similarly, it is a front view. 同じく、底面図である。Similarly, it is a bottom view. 図2のX−X線断面図である。FIG. 3 is a sectional view taken along line XX in FIG. 2. 図2のY−Y線断面図である。It is the YY sectional view taken on the line of FIG. 図3のZ−Z線断面図である。FIG. 4 is a sectional view taken along line ZZ in FIG. 3. ワイヤハーネスが車両に組み付けられた状態を示す概略図である。It is the schematic which shows the state with which the wire harness was assembled | attached to the vehicle.

本発明の好ましい実施形態を以下に示す。
前記管材は、前記直管部の軸方向両端部に連設される曲げ変形可能な曲管部を備え、前記ワイヤハーネスにおける前記曲管部に挿通される部分には、前記形状保持導体に電気的に接続される曲げ変形可能な柔軟性導体が含まれているとよい。これによれば、曲管部を配索経路に沿って容易に曲げることができるため、車体などの被取付体への組み付け作業を円滑に行うことができる。
Preferred embodiments of the present invention are shown below.
The tubular material includes a bendable deformable bent tube portion that is connected to both axial end portions of the straight tube portion, and a portion of the wire harness that is inserted into the bent tube portion is electrically connected to the shape maintaining conductor. A flexibly deformable flexible conductor that is connected in a continuous manner is preferably included. According to this, since the bent pipe portion can be easily bent along the routing route, the assembling work to the mounted body such as the vehicle body can be performed smoothly.

前記形状保持導体と前記柔軟性導体との接続部分は、前記直管部の内部に配置されるとよい。これによれば、経路配索時に接続部分に曲げ応力が作用するのを防止することができ、接続部分の接続信頼性を向上させることができる。   A connection portion between the shape maintaining conductor and the flexible conductor may be disposed inside the straight pipe portion. According to this, it is possible to prevent the bending stress from acting on the connection portion during route routing, and to improve the connection reliability of the connection portion.

前記管材が前記クランプで支持される支持位置は、前記直管部の軸方向両端部寄りの位置に設定されているとよい。これによれば、管材がクランプに安定して支持される。   The support position at which the tube material is supported by the clamp may be set to positions near both axial ends of the straight pipe portion. According to this, the tube material is stably supported by the clamp.

前記支持位置が軸方向において前記接続部分と重なる位置に設定されているとよい。これによれば、仮に、車体などの被組付体が振動しても、接続部分における振れ幅を小さく抑えることができ、接続部分に振動の影響が及びにくい。その結果、接続部分の接続信頼性をより向上させることができる。   The support position may be set to a position that overlaps the connection portion in the axial direction. According to this, even if a to-be-assembled body such as a vehicle body vibrates, the deflection width at the connection portion can be suppressed to be small, and the influence of vibration is difficult to reach the connection portion. As a result, the connection reliability of the connection portion can be further improved.

<実施例1>
以下、実施例1を図面に基づいて説明する。本実施例1は、図7に示すように、ハイブリッド自動車などの車両の後部車室91内に設置された高圧バッテリなどの機器92と前部エンジンルーム93内に設置されたインバータなどの機器94とを接続する高圧のワイヤハーネス10の配索構造を例示するものである。ワイヤハーネス10は、外装部材としての管材30に挿通され、管材30により保護された状態で車両の後部から前部へと三次元的に配索される。
<Example 1>
Embodiment 1 will be described below with reference to the drawings. In the first embodiment, as shown in FIG. 7, a device 92 such as a high voltage battery installed in a rear compartment 91 of a vehicle such as a hybrid vehicle and a device 94 such as an inverter installed in a front engine room 93. The wiring structure of the high voltage | pressure wire harness 10 which connects to is illustrated. The wire harness 10 is inserted through a pipe member 30 as an exterior member, and is three-dimensionally routed from the rear part to the front part of the vehicle while being protected by the pipe member 30.

ワイヤハーネス10の軸方向(配索方向、車体前後方向)中間部は、車体90の床下に沿って配索され、一定の形状を保持することが可能とされている。一方、ワイヤハーネス10の軸方向両端部(前端部及び後端部)は、曲げ変形可能とされ、上記車体90の床下配索領域S1から前部エンジンルーム93内及び後部車室91内に引き込まれ、コネクタ40を介して対応する各機器92、94に接続される。   An intermediate portion of the wire harness 10 in the axial direction (routing direction, vehicle body longitudinal direction) is routed along the under floor of the vehicle body 90 and can maintain a certain shape. On the other hand, both end portions (front end portion and rear end portion) in the axial direction of the wire harness 10 can be bent and deformed, and are drawn into the front engine room 93 and the rear compartment 91 from the underfloor wiring region S1 of the vehicle body 90. And connected to the corresponding devices 92 and 94 via the connector 40.

ワイヤハーネス10は、2本の高圧の導体11で構成される。図6に示すように、各導体11は、軸方向に延びる形状保持導体としての単芯線12と、単芯線12の軸方向両端部に電気的及び機械的に接続される柔軟性導体としての撚り線13とを有している。   The wire harness 10 is composed of two high-voltage conductors 11. As shown in FIG. 6, each conductor 11 includes a single core wire 12 as a shape maintaining conductor extending in the axial direction and a twist as a flexible conductor electrically and mechanically connected to both axial ends of the single core wire 12. Line 13.

単芯線12は、1本の金属棒状の導電部14と、導電部14の外周を包囲する絶縁被覆15とからなるノンシールド線である。導電部14は、銅又は銅合金、あるいはアルミ又はアルミ合金によって断面円形をなし、自己形状を保持する高剛性の導電材料で構成される。本実施例1の場合、床下配索領域S1における導体11の軽量化が望まれるため、導電部14はアルミ又はアルミ合金であるのが好ましい。図5に示すように、単芯線12の軸方向両端部では導電部14が露出しており、露出した導電部14は潰し加工によって扁平状な板状接続部16を形成する。なお、単芯線12の全長(延出長さ)は、この単芯線12の外周を包囲する後述する直管部31の全長(延出長さ)よりも少し短くされている。   The single core wire 12 is a non-shielded wire composed of a single metal rod-like conductive portion 14 and an insulating coating 15 surrounding the outer periphery of the conductive portion 14. The conductive portion 14 is made of copper or a copper alloy, or aluminum or an aluminum alloy, and is made of a highly rigid conductive material that has a circular cross section and maintains its own shape. In the case of the present Example 1, since the weight reduction of the conductor 11 in underfloor wiring area | region S1 is desired, it is preferable that the electroconductive part 14 is aluminum or an aluminum alloy. As shown in FIG. 5, the conductive portion 14 is exposed at both axial ends of the single core wire 12, and the exposed conductive portion 14 forms a flat plate-like connecting portion 16 by crushing. In addition, the full length (extension length) of the single core wire 12 is made slightly shorter than the full length (extension length) of the straight pipe part 31 described later surrounding the outer periphery of the single core wire 12.

撚り線13は、複数本の素線を撚り合わせてなる芯線17と、芯線17の外周を包囲する絶縁被覆18とからなるノンシールド電線である。芯線17を構成する各素線は、銅又は銅合金、あるいはアルミ又はアルミ合金によって形成され、低剛性で撓み易く、曲げ変形容易な導電材料で構成される。   The stranded wire 13 is a non-shielded electric wire composed of a core wire 17 formed by twisting a plurality of strands and an insulating coating 18 surrounding the outer periphery of the core wire 17. Each element wire constituting the core wire 17 is made of copper or a copper alloy, or aluminum or an aluminum alloy, and is made of a conductive material that has low rigidity and is easily bent and easily deformed.

図5に示すように、撚り線13の軸方向両端部はそれぞれ所定長さ範囲にわたって絶縁被覆18が剥がされ、芯線17が露出している。この露出した芯線17によって芯線接続部19が構成される。両芯線接続部19のうち、軸方向一端側(配索方向内側)の芯線接続部19は、単芯線12の板状接続部16に板厚方向に重ねられて半田付けや超音波溶接などの溶接により接続され、軸方向他端側(配索方向外側)の芯線接続部19は、端子金具(図示せず)に接続され、端子金具が対応するコネクタ40に収容され、このコネクタ40が対応する機器92、94側のコネクタ(図示せず)に嵌合されることで機器92、94側に接続される。なお、撚り線13の全長(延出長さ)は、この撚り線13の外周を包囲する後述する曲管部32の全長(延出長さ)よりも少し長くされている。   As shown in FIG. 5, the insulation coating 18 is stripped over a predetermined length range at both axial ends of the stranded wire 13, and the core wire 17 is exposed. The exposed core wire 17 constitutes a core wire connecting portion 19. Of the two core wire connecting portions 19, the core wire connecting portion 19 on one end side in the axial direction (inner side in the wiring direction) is overlapped with the plate-like connecting portion 16 of the single core wire 12 in the plate thickness direction, and soldering, ultrasonic welding or the like is performed. The core wire connection portion 19 on the other end side in the axial direction (outside in the wiring direction) is connected by welding, is connected to a terminal fitting (not shown), and the terminal fitting is accommodated in the corresponding connector 40. By fitting to a connector (not shown) on the device 92, 94 side to be connected, it is connected to the device 92, 94 side. In addition, the full length (extension length) of the strand wire 13 is made a little longer than the full length (extension length) of the curved pipe part 32 mentioned later surrounding the outer periphery of this strand wire 13. FIG.

板状接続部16と芯線接続部19との接続部分20は、熱収縮チューブ80によって全周が覆われている。図5及び図6に示すように、熱収縮チューブ80は、単芯線12の絶縁被覆15と撚り線13の絶縁被覆18とにまたがって被せられ、加熱により収縮され、接続部分20を含む被覆領域に密着される。これにより、単芯線12と撚り線13との接続部分20が防水される。   The entire circumference of the connection portion 20 between the plate-like connection portion 16 and the core wire connection portion 19 is covered with a heat shrinkable tube 80. As shown in FIGS. 5 and 6, the heat-shrinkable tube 80 is covered with the insulating coating 15 of the single core wire 12 and the insulating coating 18 of the stranded wire 13, is shrunk by heating, and includes a connecting portion 20. It is closely attached to. Thereby, the connection part 20 of the single core wire 12 and the strand wire 13 is waterproofed.

また、導体11の外周は単芯線12及び撚り線13の略全長にわたって編組部材70により一括して包囲されている。編組部材70は、銅などの導電性の金属細線をメッシュ状に編み込んで筒状に形成したものである。編組部材70の軸方向両端部は、コネクタ40に導通可能に固着されている。なお、編組部材70の代わりに金属箔などで包囲することも可能である。   Further, the outer periphery of the conductor 11 is collectively surrounded by a braided member 70 over substantially the entire length of the single core wire 12 and the stranded wire 13. The braided member 70 is formed in a cylindrical shape by knitting conductive metal wires such as copper into a mesh shape. Both ends of the braided member 70 in the axial direction are fixed to the connector 40 so as to be conductive. It is also possible to enclose with a metal foil or the like instead of the braided member 70.

管材30は、合成樹脂製であって全体として断面円形の筒状をなし、軸方向に延びる直管部31と、直管部31の軸方向両端部に連設される曲管部32とを備えている。直管部31と曲管部32とはブロー成形により一体に成形される。導体11は、編組部材70とともに外周が管材30で包囲されるようになっている。なお、本実施例1の場合、管材30は、内部の導体11が高圧系であることを示すため、オレンジ色に配色されている。   The pipe member 30 is made of synthetic resin and has a cylindrical shape with a circular cross section as a whole, and includes a straight pipe part 31 extending in the axial direction and a curved pipe part 32 continuously provided at both axial ends of the straight pipe part 31. I have. The straight pipe portion 31 and the curved pipe portion 32 are integrally formed by blow molding. The conductor 11 is configured so that the outer periphery of the conductor 11 is surrounded by the pipe material 30 together with the braided member 70. In the case of the first embodiment, the tube material 30 is colored in orange to indicate that the internal conductor 11 is a high voltage system.

曲管部32は、ブロー成形によって直管部31から連続して軸方向に延びる形態で得られる。具体的には、曲管部32は、軸方向に凹部と凸部とが交互に形成されたコルゲート状の蛇腹管として構成され、軸方向の任意の位置で曲げ変形可能とされている。このことから、曲管部32は、図7に示すように、経路配索時に前部エンジンルーム93内及び後部車室91内に引き込まれる領域S2に対応して配置され、この引き込み領域S2の屈曲形態に対応可能となっている。図5に示すように、曲管部32には、導体11のうち、フレキシブルな撚り線13が挿通され、撚り線13は、曲管部32及び編組部材70とともに曲げ変形可能とされている。両曲管部32の軸方向端部(配索方向外側の端部)は、コネクタ40に臨み、コネクタ40との間にテープ60が巻き付けられる。これにより、管材30の軸方向両端部がコネクタ40に固定される。   The curved pipe part 32 is obtained in a form continuously extending from the straight pipe part 31 in the axial direction by blow molding. Specifically, the curved pipe portion 32 is configured as a corrugated bellows tube in which concave portions and convex portions are alternately formed in the axial direction, and can be bent and deformed at an arbitrary position in the axial direction. Therefore, as shown in FIG. 7, the curved pipe portion 32 is disposed corresponding to the region S2 drawn into the front engine room 93 and the rear compartment 91 at the time of route routing. It is possible to correspond to the bent form. As shown in FIG. 5, the flexible stranded wire 13 of the conductor 11 is inserted into the bent tube portion 32, and the stranded wire 13 can be bent and deformed together with the bent tube portion 32 and the braided member 70. The end portions in the axial direction of both the bent pipe portions 32 (end portions on the outer side in the arrangement direction) face the connector 40, and the tape 60 is wound around the connector 40. As a result, both axial ends of the pipe member 30 are fixed to the connector 40.

直管部31は、軸方向に真っ直ぐ延びる形態とされ、全長にわたって同一径の円筒状に形成されている。直管部31の内外面は、実質的に凹凸の無い周面とされている。この直管部31は、曲管部32よりも高い剛性を有し、曲げ困難な形態になっている。このことから、直管部31は、図7に示すように、経路配索時に床下配索領域S1に対応して配置され、床下配索領域S1に必要な形状保持性を確保している。また、直管部31は、飛び石などの異物から導体11を保護する耐チッピング性をも有している。図5に示すように、直管部31には、主として、導体11のうち、形状保持性を有する単芯線12が挿通され、単芯線12は、直管部31とともに一定の形状を維持することが可能とされている。   The straight pipe portion 31 is configured to extend straight in the axial direction, and is formed in a cylindrical shape having the same diameter over the entire length. The inner and outer surfaces of the straight pipe portion 31 are substantially peripheral surfaces without irregularities. The straight pipe portion 31 has a higher rigidity than the curved pipe portion 32 and is difficult to bend. From this, as shown in FIG. 7, the straight pipe part 31 is arrange | positioned corresponding to underfloor wiring area | region S1 at the time of route | route routing, and has ensured the shape retainability required for underfloor wiring area | region S1. The straight pipe portion 31 also has chipping resistance that protects the conductor 11 from foreign matters such as stepping stones. As shown in FIG. 5, the single core wire 12 having shape retaining property is mainly inserted into the straight pipe portion 31 of the conductor 11, and the single core wire 12 maintains a certain shape together with the straight pipe portion 31. Is possible.

撚り線13のうち、芯線接続部19を含む軸方向一端側の端部は、直管部31の内部に進入して配置される。このため、板状接続部16と芯線接続部19との接続部分20は、直管部31の内部に位置することになる。   Of the stranded wire 13, the end portion on the one end side in the axial direction including the core wire connecting portion 19 enters the straight pipe portion 31 and is arranged. For this reason, the connecting portion 20 between the plate-like connecting portion 16 and the core wire connecting portion 19 is located inside the straight pipe portion 31.

管材30は、クランプ50で支持され、クランプ50によって車体90の床下側に吊り下げ固定される。図4に示すように、クランプ50は、管材30の直管部31を嵌め込んで保持する管保持部51と、車体90の床下側に係止される車体係止部52とを備えて一体に形成されている。管保持部51と車体係止部52とは、管材30の延び方向である軸方向と直交する上下方向に互いに並列に配置されている。この管保持部51及び車体係止部52の並列方向は、2本の導体11の並列方向及び接続部分20の重合面方向と同一である。   The pipe member 30 is supported by a clamp 50 and is suspended and fixed to the lower floor side of the vehicle body 90 by the clamp 50. As shown in FIG. 4, the clamp 50 includes a pipe holding part 51 that fits and holds the straight pipe part 31 of the pipe member 30, and a vehicle body locking part 52 that is locked to the lower floor side of the vehicle body 90. Is formed. The pipe holding part 51 and the vehicle body locking part 52 are arranged in parallel to each other in the vertical direction perpendicular to the axial direction that is the extending direction of the pipe material 30. The parallel direction of the tube holding portion 51 and the vehicle body locking portion 52 is the same as the parallel direction of the two conductors 11 and the overlapping surface direction of the connection portion 20.

管保持部51は、直管部31の外周に沿って曲成された断面円形状をなし、直管部31を内嵌保持することが可能とされている。車体係止部52は、直管部31の周方向両端から連続して延びる二重板状をなし、車体90の床下側に固定具(図示せず)を介して取り付けられる。図1及び図2に示すように、車体係止部52には、固定具を通す円形の係止孔53が貫通して設けられている。   The tube holding portion 51 has a circular cross-sectional shape that is bent along the outer periphery of the straight tube portion 31, and can hold the straight tube portion 31 internally. The vehicle body locking portion 52 has a double plate shape extending continuously from both ends in the circumferential direction of the straight pipe portion 31 and is attached to the lower side of the floor of the vehicle body 90 via a fixture (not shown). As shown in FIGS. 1 and 2, the vehicle body locking portion 52 is provided with a circular locking hole 53 through which a fixture is passed.

クランプ50は、管材30のうち、少なくとも、直管部31の軸方向両端部寄りで、且つ曲管部32と隣接する位置に、間隔をあけて取り付けられる。具体的には、クランプ50は、図5に示すように、管材30のうち、少なくとも、軸方向において板状接続部16と芯線接続部19との接続部分20と重なる位置に、より詳細には、軸方向において板状接続部16と芯線接続部19との接続部分20の全体を含む位置に、間隔をあけて取り付けられる。   The clamp 50 is attached to the tube 30 at least at a position near the both ends in the axial direction of the straight pipe portion 31 and adjacent to the curved pipe portion 32. Specifically, as shown in FIG. 5, the clamp 50 is at least at a position of the pipe material 30 that overlaps at least the connection portion 20 between the plate-like connection portion 16 and the core wire connection portion 19 in the axial direction. In the axial direction, the plate-like connecting portion 16 and the core wire connecting portion 19 are attached to the position including the entire connecting portion 20 with a gap therebetween.

次に、本実施例1の作用を説明する。
組み付けに際し、あらかじめ撚り線13の芯線接続部19が単芯線12の板状接続部16に重ねられ、この重合部分(接続部分20)が半田又は溶接により電気的及び機械的に接続される。これにより、単芯線12と撚り線13とが接続部分20を介して連結され、単芯線12及び撚り線13が軸方向に順次連なる導体11が得られる。
Next, the operation of the first embodiment will be described.
At the time of assembly, the core wire connecting portion 19 of the stranded wire 13 is preliminarily overlapped with the plate-like connecting portion 16 of the single core wire 12, and this overlapped portion (connecting portion 20) is electrically and mechanically connected by soldering or welding. Thereby, the single core wire 12 and the strand wire 13 are connected via the connection part 20, and the conductor 11 in which the single core wire 12 and the strand wire 13 are successively connected in the axial direction is obtained.

続いて、ブロー成形によって直線状に成形された長尺の管材30に、導体11と編組部材70とが挿通される。導体11の軸方向両端部(両撚り線13の配索方向外側の端部)が管材30の軸方向両端部(両曲管部32の配索方向外側の端部)から所定長さ外側に突出した状態になることにより、接続部分20が直管部31の軸方向両端部寄りの位置に配置されることになる。導体11の軸方向両端部には、適宜のタイミングで端子金具が接続され、端子金具は対応するコネクタ40に収容されて保持され、コネクタ40と管材30とにまたがってテープ60が巻き付けられる。また、適宜のタイミングで、直管部31の軸方向両端部にクランプ50の管保持部51が嵌め付けられる。   Subsequently, the conductor 11 and the braided member 70 are inserted through the long tubular material 30 that is linearly formed by blow molding. Both ends of the conductor 11 in the axial direction (ends on the outer side in the wiring direction of both stranded wires 13) are outside a predetermined length from both ends in the axial direction of the pipe material 30 (ends on the outer side in the wiring direction of both bent pipes 32). By being in the protruding state, the connecting portion 20 is disposed at a position near both axial ends of the straight pipe portion 31. Terminal metal fittings are connected to both ends in the axial direction of the conductor 11 at an appropriate timing. The terminal metal fittings are accommodated and held in the corresponding connectors 40, and the tape 60 is wound around the connectors 40 and the pipe material 30. In addition, the tube holding portion 51 of the clamp 50 is fitted to both ends in the axial direction of the straight tube portion 31 at an appropriate timing.

次いで、図7に示すように、上記ワイヤハーネス10の組付体が車体90の床下側(床下配索領域S1側)から前部エンジンルーム93内及び後部車室91内(引き込み領域S2側)にかけて所定の配索経路に沿って配索される。このとき、車体90の床下配索領域S1側では、クランプ50に支持された直管部31が配置され、車体90の前後の引き込み領域S2側では、この引き込み領域S2の屈曲形態に応じて曲げられた曲管部32が配置される。ここでは、曲管部32は、作業者の人力(手)で曲げられる。   Next, as shown in FIG. 7, the assembly of the wire harness 10 is moved from the under floor side (under the floor routing area S1 side) of the vehicle body 90 to the front engine room 93 and the rear compartment 91 (retraction area S2 side). Is routed along a predetermined route. At this time, the straight pipe portion 31 supported by the clamp 50 is disposed on the underfloor wiring area S1 side of the vehicle body 90, and on the retraction area S2 side of the front and rear of the vehicle body 90, bending according to the bending form of the retraction area S2. The bent pipe portion 32 is disposed. Here, the curved pipe portion 32 is bent by the human power (hand) of the operator.

ところで、本実施例1と違って、仮に、導体11のうち、単芯線12に相当する部分が、単芯線12に代えて、撚り線13などの柔軟性導体で構成されるとすると、管材30がクランプ50に支持された状態において、直管部31に、柔軟性導体の自重や振れによる大きな荷重が経時的に作用してしまう。このため、経年の時間経過とともに、直管部31の軸方向中間部が荷重により垂れ下がるように変形するおそれがある。   By the way, unlike the first embodiment, if a portion of the conductor 11 corresponding to the single core wire 12 is formed of a flexible conductor such as a stranded wire 13 instead of the single core wire 12, the pipe material 30 is used. Is supported by the clamp 50, a large load due to its own weight or deflection of the flexible conductor acts on the straight pipe portion 31 over time. For this reason, there exists a possibility that the axial direction intermediate part of the straight pipe part 31 may deform | transform so that it may hang down with a load with progress of time.

その点、本実施例1の場合、導体11のうち、直管部31に挿通される部分が主として自己形状保持性を有する単芯線12で構成されるため、直管部31の軸方向中間部に単芯線12から大きな荷重が作用することがなく、直管部31が垂れ下がるように変形するのを防止することができる。しかも、単芯線12がアルミ又はアルミ合金からなるものであれば、単芯線12の自重そのものを軽量化することができる。   In that respect, in the case of the first embodiment, the portion of the conductor 11 that is inserted into the straight tube portion 31 is mainly composed of the single core wire 12 having self-shape retaining properties, and therefore the axial intermediate portion of the straight tube portion 31. Thus, a large load is not applied to the single core wire 12, and the straight pipe portion 31 can be prevented from being deformed so as to hang down. Moreover, if the single core wire 12 is made of aluminum or an aluminum alloy, the weight of the single core wire 12 itself can be reduced.

また、本実施例1によれば、直管部31が変形するのを防止するべく直管部31の外周に剛性を付与する付加的な構造を設ける必要がないから、配索構造の大型化を招くこともない。   Further, according to the first embodiment, since it is not necessary to provide an additional structure for imparting rigidity to the outer periphery of the straight pipe portion 31 in order to prevent the straight pipe portion 31 from being deformed, the size of the routing structure is increased. Will not be invited.

また、管材30は直管部31の軸方向両端部に連設される曲げ変形可能な曲管部32を備え、ワイヤハーネス10における曲管部32に挿通される部分には、曲げ変形可能な柔軟性導体としての撚り線13が含まれているため、曲管部32を配索経路に沿って容易に曲げることができ、車体90への組み付け作業を円滑に行うことができる。   Moreover, the pipe material 30 is provided with a bendable deformable bent pipe portion 32 connected to both axial ends of the straight pipe portion 31, and a bendable deformable portion is inserted into the bent portion 32 of the wire harness 10. Since the stranded wire 13 as the flexible conductor is included, the bent pipe portion 32 can be easily bent along the routing path, and the assembly work to the vehicle body 90 can be performed smoothly.

さらに、単芯線12と撚り線13との接続部分20が直管部31の内部に配置されるから、経路配索時に接続部分20に曲げ応力が作用するのを防止することができ、接続部分20の接続信頼性を向上させることができる。   Further, since the connecting portion 20 between the single core wire 12 and the stranded wire 13 is disposed inside the straight pipe portion 31, it is possible to prevent a bending stress from acting on the connecting portion 20 when routing the route. 20 connection reliability can be improved.

さらにまた、管材30がクランプ50で支持される支持位置が直管部31の軸方向両端部寄りの位置に設定され、その位置が軸方向において接続部分20と重なる位置でもあるため、仮に、車体90が振動しても、車体90に固定されるクランプ50によって接続部分20における振れ幅を小さく抑えることができ、接続部分20に振動の影響を及びにくくすることができる。その結果、接続部分20の接続信頼性をより向上させることができる。   Furthermore, since the support position at which the pipe member 30 is supported by the clamp 50 is set at a position near both axial ends of the straight pipe portion 31 and the position overlaps the connecting portion 20 in the axial direction, Even when 90 vibrates, the clamp 50 fixed to the vehicle body 90 can suppress the deflection width in the connection portion 20 to be small, and the connection portion 20 can be hardly affected by vibration. As a result, the connection reliability of the connection portion 20 can be further improved.

<他の実施例>
以下、他の実施例を簡単に説明する。
(1)導体のうち、単芯線に相当する部分は、形状保持導体であればよく、単芯線に代えて、金属パイプなどの導電性筒体であってもよい。
(2)形状保持導体(実施例1の場合は単芯線)と柔軟性導体(実施例1の場合は撚り線)とは端子金具を介して接続されるものであってもよい。この場合、例えば、柔軟性導体の露出した芯線に丸型端子(いわゆるLA端子)が接続され、丸型端子が単芯線の板状接続部にボルトなどにより締結固定されるものであってもよい。
(3)直管部と曲管部とは互いに分離可能な別体構造であってもよい。
(4)例えば、配索経路に屈曲部位が含まれない場合には、管材は直管部のみで構成され、曲管部を有しない構造であってもよい。
(5)曲管部は、ベンダー機で曲げられるものであってもよい。
(6)上記実施例1では、シールド機能を有するワイヤハーネスの配索構造を示したが、本発明は、シールド機能を有さないワイヤハーネスの配索構造に広く適用可能である。
<Other embodiments>
Other embodiments will be briefly described below.
(1) Of the conductor, the portion corresponding to the single core wire may be a shape-retaining conductor, and may be a conductive cylinder such as a metal pipe instead of the single core wire.
(2) The shape maintaining conductor (single core wire in the case of Example 1) and the flexible conductor (stranded wire in the case of Example 1) may be connected via a terminal fitting. In this case, for example, a round terminal (so-called LA terminal) may be connected to the exposed core wire of the flexible conductor, and the round terminal may be fastened and fixed to the plate-like connecting portion of the single core wire by a bolt or the like. .
(3) The straight pipe part and the curved pipe part may be separated from each other.
(4) For example, when a bent part is not included in the routing route, the tube material may be configured by only a straight pipe portion and may not have a curved pipe portion.
(5) The bent pipe portion may be bent by a bender machine.
(6) Although the wiring harness wiring structure having a shielding function is shown in the first embodiment, the present invention can be widely applied to the wiring harness wiring structure having no shielding function.

10…ワイヤハーネス
11…導体
12…単芯線(形状保持導体)
13…撚り線(柔軟性導体)
20…接続部分
30…管材
31…直管部
32…曲管部
50…クランプ
DESCRIPTION OF SYMBOLS 10 ... Wire harness 11 ... Conductor 12 ... Single core wire (shape maintenance conductor)
13 ... Stranded wire (flexible conductor)
DESCRIPTION OF SYMBOLS 20 ... Connection part 30 ... Pipe material 31 ... Straight pipe part 32 ... Curved pipe part 50 ... Clamp

Claims (5)

クランプで支持される樹脂製の管材に挿通されるワイヤハーネスの配索構造であって、
前記管材は、軸方向に延びる直管部を備え、
前記ワイヤハーネスにおける前記直管部に挿通される部分には、配索形状を保持することが可能な形状保持導体が含まれていることを特徴とするワイヤハーネスの配索構造。
A wiring structure of a wire harness that is inserted into a resin pipe supported by a clamp,
The pipe includes a straight pipe portion extending in the axial direction,
The wire harness routing structure, wherein a portion of the wire harness that is inserted through the straight pipe portion includes a shape holding conductor capable of holding the routing shape.
前記管材は、前記直管部の軸方向両端部に連設される曲げ変形可能な曲管部を備え、
前記ワイヤハーネスにおける前記曲管部に挿通される部分には、前記形状保持導体に電気的に接続される曲げ変形可能な柔軟性導体が含まれている請求項1記載のワイヤハーネスの配索構造。
The pipe includes a bendable and deformable curved pipe portion that is connected to both axial ends of the straight pipe portion,
The wiring structure of the wire harness according to claim 1, wherein a portion of the wire harness that is inserted into the bent pipe portion includes a flexible conductor that can be bent and deformed and is electrically connected to the shape maintaining conductor. .
前記形状保持導体と前記柔軟性導体との接続部分は、前記直管部の内部に配置される請求項2記載のワイヤハーネスの配索構造。   The wiring harness wiring structure according to claim 2, wherein a connection portion between the shape maintaining conductor and the flexible conductor is disposed inside the straight pipe portion. 前記管材が前記クランプで支持される支持位置は、前記直管部の軸方向両端部寄りの位置に設定されている請求項1ないし3のいずれか1項記載のワイヤハーネスの配索構造。   The wiring structure of the wire harness according to any one of claims 1 to 3, wherein a support position at which the pipe material is supported by the clamp is set at a position near both axial ends of the straight pipe portion. 前記支持位置が軸方向において前記接続部分と重なる位置に設定されている請求項4記載のワイヤハーネスの配索構造。   The wiring structure of the wire harness according to claim 4, wherein the support position is set at a position overlapping the connection portion in the axial direction.
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112435789A (en) * 2019-08-26 2021-03-02 住友电装株式会社 Pipe and wire harness

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